condition mean min max ZT0-3 2728.235 2728.235 2728.235 ZT4-7 2823.6800000000003 2823.6800000000003 2823.6800000000003 ZT8-11 2811.195 2811.195 2811.195 ZT12-15 2263.12 2263.12 2263.12 ZT16-19 1665.205 1665.205 1665.205 ZT20-23 2186.19 2186.19 2186.19